Watermarking performance enhancement has always been a difficult task since the performance metrics of watermarking systems, i.e., fidelity, robustness, and payload size, inherently conflict with each other. Nowadays, most watermarking schemes hide payloads according to predefined rules or empirical perceptual models. Therefore, the performance of digital watermarking schemes can be determined ...

Network flow watermarking schemes have been used to detect stepping stones, which including watermark embedding scheme and detection scheme. Among them, watermark embedding scheme plays a vital part in a watermarking scheme. Most existing watermark embedding schemes are based on using a randomly select the operation time interval and then generated watermark sequence in carrier flow. However, t...

This article presents the analysis of strength of watermarking algorithm against various noises like Gaussian, Speckle etc. Digital watermarking is the technique to insert some kind of ownership information in any digital media like image, audio, video. This enables the owner of the media to claim the ownership against any illegal use or claim of false ownership. These watermarks are permanent ...

A wavelet-based watermark casting scheme and a blind watermark retrieval technique are investigated in this research. An adaptive watermark casting method is developed to first determine significant wavelet subbands and then select a couple of significant wavelet coefficients in these subbands to embed watermarks. A blind watermark retrieval technique that can detect the embedded watermark with...

In this paper we propose a watermarking method in which Estimator based approach is used. Due to this approach simple spatial method could resist different noise attacks. For the evaluation of Imperceptibility & Robustness of the proposed method we have calculated different quality measure parameters. We have tested watermarked image against different noise attacks at different noise densities....